DUFFIELD DAVID A sold 48.7% of their position (99.61K shares) of WORKDAY, INC. on the open market

Open‑market sale worth $19.14M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 6 sales

DUFFIELD DAVID A

Filed: 9/25/2026ACC: 0000938071-26-000059

InsiderDUFFIELD DAVID ACIK 938071

→

IssuerWORKDAY, INC.CIK 1327811

10% Owner

Since Mar 2026

-99.61K

Net shares

Net seller

$19.14M

Total sold

Open market trades

0B · 6S

Total transactions

99.61K acquired · 199.23K disposed

Non-Derivative Transactions7

Class A Common Stock

Direct

C · Conversion

+99.61K

Price / share

—

Trade value

—

% of position

94.8%

9/23/2026

105.05K→204.66K

Class A Common Stock

Direct

S · Sale

−2.32K

Price / share

$188.92

Trade value

$439.04K

% of position

1.1%

9/23/2026

204.66K→202.34K

Class A Common Stock

Direct

S · Sale

−1.78K

Price / share

$189.69

Trade value

$336.89K

% of position

0.9%

9/23/2026

202.34K→200.56K

Class A Common Stock

Direct

S · Sale

−4.85K

Price / share

$190.95

Trade value

$925.91K

% of position

2.4%

9/23/2026

200.56K→195.71K

Class A Common Stock

Direct

S · Sale

−63.85K

Price / share

$192.10

Trade value

$12.27M

% of position

32.6%

9/23/2026

195.71K→131.86K

Class A Common Stock

Direct

S · Sale

−24.93K

Price / share

$192.84

Trade value

$4.81M

% of position

18.9%

9/23/2026

131.86K→106.92K

Class A Common Stock

Direct

S · Sale

−1.88K

Price / share

$193.62

Trade value

$363.04K

% of position

1.8%

9/23/2026

106.92K→105.05K

Total

Net shares

+0.00

Net value

-$19.14M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Common Stock Direct	9/23/2026	C · Conversion	+99.61K	—	—	94.8%	105.05K	204.66K
Class A Common Stock Direct	9/23/2026	S · Sale	−2.32K	$188.92	$439.04K	1.1%	204.66K	202.34K
Class A Common Stock Direct	9/23/2026	S · Sale	−1.78K	$189.69	$336.89K	0.9%	202.34K	200.56K
Class A Common Stock Direct	9/23/2026	S · Sale	−4.85K	$190.95	$925.91K	2.4%	200.56K	195.71K
Class A Common Stock Direct	9/23/2026	S · Sale	−63.85K	$192.10	$12.27M	32.6%	195.71K	131.86K
Class A Common Stock Direct	9/23/2026	S · Sale	−24.93K	$192.84	$4.81M	18.9%	131.86K	106.92K
Class A Common Stock Direct	9/23/2026	S · Sale	−1.88K	$193.62	$363.04K	1.8%	106.92K	105.05K
Total			+0.00		-$19.14M

Derivative Transactions1

Class B Common Stock

Direct

C · Conversion

Converts to

Class A Common Stock

99.61K shares

−99.61K

Strike price

Held after

35.88M

Exercisable

—

9/23/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Class B Common Stock Direct	Class A Common Stock99.61K shares	9/23/2026	C · Conversion	−99.61K		—	35.88M